US20240130075A1 - High reliability, low cost electronics in oil for subsea applications - Google Patents
High reliability, low cost electronics in oil for subsea applications Download PDFInfo
- Publication number
- US20240130075A1 US20240130075A1 US18/489,033 US202318489033A US2024130075A1 US 20240130075 A1 US20240130075 A1 US 20240130075A1 US 202318489033 A US202318489033 A US 202318489033A US 2024130075 A1 US2024130075 A1 US 2024130075A1
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- United States
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- shell
- arrangement
- electrical connection
- electronics
- oil
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- 238000000034 method Methods 0.000 claims description 25
- 230000005611 electricity Effects 0.000 claims description 8
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 3
- 229930195733 hydrocarbon Natural products 0.000 abstract description 3
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 239000004020 conductor Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20236—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures by immersion
Definitions
- aspects of the disclosure relate to electronics used in hydrocarbon recovery operations. More specifically, aspects of the disclosure relate to high reliability and low cost electronics used in subsea applications for hydrocarbon recovery operations.
- enclosures may hold electronics, wherein the SEM is filled with nitrogen and sealed.
- the SEM in turn, is enclosed in a SCM enclosure, that is filled with oil for cooling purposes. The whole assembly is resting on the seabed and carry out seabed operations.
- the whole subsea assembly needs to be highly reliable and must provide a mission profile of 20 years because economic costs over 1 M$ are needed just to prepare the intervention to change parts within the SCM.
- the electronics in the SEM enclosure are filled with nitrogen in order to control the atmosphere and the to get rid of humidity.
- the whole assembly is then sealed and has to be immersed in pressurized oil. Therefore, the enclosure manufacturing is complex and the SEM wall thickness has to be designed as such to withstand the pressure from the oil.
- the pressurized oil is used to dissipate the heat generated from the electronics within the SEM (Nitrogen is not a good heat conductor).
- an arrangement in another example embodiment, may comprise a shell comprising an internal volume, the shell having a first end and a second end.
- the arrangement may also comprise an electrical connection end connected to the first end of the shell, the electrical connection end configured to transmit electricity and signals.
- the arrangement may also comprise an electronics rack positioned within the internal volume, the electronics rack configured to support electrical equipment and an end cap positioned at the second end of the shell, wherein a combination of the shell, the electrical connection and the end cap is configured to store oil within the combination.
- the method may comprise obtaining a shell with a first end and a second end and installing electrical equipment within the shell.
- the method may also comprise installing an end cap at the second end of the shell.
- the method may also comprise installing an electrical connection end at first end of the shell and filling the shell with oil.
- FIG. 1 A is a cross-sectional view of one aspect of the disclosure with an internal electronics rack.
- FIG. 1 B is an external view of the arrangement of FIG. 1 A .
- FIG. 2 is a method for assembling the arrangement.
- first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, components, region, layer or section from another region, layer or section. Terms such as “first”, “second” and other numerical terms, when used herein, do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed herein could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
- the arrangement 200 is a high reliability component that allows for electrical equipment stored inside the arrangement 200 to be fed electrical energy and transmit data from within the arrangement 200 .
- the arrangement 200 is filled with oil, compared to nitrogen for conventional devices. More details of the arrangement 200 are discussed in relation to FIGS. 2 A and 2 B below.
- an arrangement 200 of one example embodiment of the disclosure is used as an SEM, as discussed above.
- the arrangement 200 is configured with a shell 202 that defines an internal volume 204 .
- the shell 202 is formed in a shape of a closed cylinder.
- a set of electrical connections is provided for the shell 202 .
- an end cap is provided at a second end 208 .
- an electronics rack is provided to support electronics held within the shell 202 .
- Components stored on the electronics rack 210 are fed electricity from the electrical connections at the first end 206 .
- the electrical connections allow for passing electrical energy to and from the interior of the shell as well as data in the form of signals generated by measuring equipment stored in the arrangement.
- the internal volume 204 may be a pressurized chamber.
- the penetrations to the shell 202 are located at the first end 206 .
- the shell 202 may be made of carbon steel, aluminum and titanium in non-limiting embodiments.
- the arrangement 200 is filled with oil instead of nitrogen. This has several benefits:
- the capability of the arrangement 200 provides a service life of 25 years at 400 bars exposure at 85 degrees C. Conventional apparatus do not have such long life capability coupled with low construction cost.
- the method 300 presented provides a method of cooling and maintaining electrical components in subsea applications.
- the method 300 may include obtaining a shell with a first end and a second end at 302 .
- electrical equipment may be installed within the shell.
- the method may further comprise installing an end cap at the second end.
- the method may further comprise installing an electrical connection end at the first end, the electrical connection end configured to transmit electrical energy to the electrical equipment installed within the shell.
- the method may further comprise filling the shell with oil in order to cool and protect the electrical equipment within the shell.
- an arrangement in another example embodiment, may comprise a shell comprising an internal volume, the shell having a first end and a second end.
- the arrangement may also comprise an electrical connection end connected to the first end of the shell, the electrical connection end configured to transmit electricity and signals.
- the arrangement may also comprise an electronics rack positioned within the internal volume, the electronics rack configured to support electrical equipment and an end cap positioned at the second end of the shell, wherein a combination of the shell, the electrical connection and the end cap is configured to store oil within the combination.
- the arrangement may be configured wherein the arrangement is made of carbon steel.
- the arrangement may be configured wherein the arrangement is made of metallic materials.
- the arrangement may be configured wherein the arrangement is made of titanium.
- the arrangement may be configured wherein the electronics rack is configured to at least one of provide electricity from the electrical connection end and the send and receive signals to electronics stored on the electronics rack.
- the method may comprise obtaining a shell with a first end and a second end and installing electrical equipment within the shell.
- the method may also comprise installing an end cap at the second end of the shell.
- the method may also comprise installing an electrical connection end at first end of the shell and filling the shell with oil.
- the method may be performed The wherein the oil is configured to at least one of cool and protect the electrical equipment installed within the shell.
- the method may be performed wherein the electrical connection end is configured to transmit electrical energy to the electrical equipment within the shell.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Embodiments presented provide for high reliability and low cost electronics used in hydrocarbon recovery operations. In embodiments, the low cost electronics are used in subsea applications.
Description
- This application claims priority to co-pending U.S. patent application, Ser. No. 63/379,930, entitled: “High Reliability, Low Cost Electronics in Oil for Subsea Applications”, filed on Oct. 18, 2022, the entirety of which is incorporated herein by reference.
- Aspects of the disclosure relate to electronics used in hydrocarbon recovery operations. More specifically, aspects of the disclosure relate to high reliability and low cost electronics used in subsea applications for hydrocarbon recovery operations.
- For subsea applications, enclosures, called an SEM, may hold electronics, wherein the SEM is filled with nitrogen and sealed. The SEM, in turn, is enclosed in a SCM enclosure, that is filled with oil for cooling purposes. The whole assembly is resting on the seabed and carry out seabed operations.
- The whole subsea assembly needs to be highly reliable and must provide a mission profile of 20 years because economic costs over 1 M$ are needed just to prepare the intervention to change parts within the SCM. Secondly the electronics in the SEM enclosure are filled with nitrogen in order to control the atmosphere and the to get rid of humidity. The whole assembly is then sealed and has to be immersed in pressurized oil. Therefore, the enclosure manufacturing is complex and the SEM wall thickness has to be designed as such to withstand the pressure from the oil. The pressurized oil is used to dissipate the heat generated from the electronics within the SEM (Nitrogen is not a good heat conductor).
- There is a need to provide an apparatus and methods that easier to operate than conventional apparatus and methods.
- There is a further need to provide apparatus and methods that do not have the drawbacks discussed above, namely of humidity build up within critical electrical components.
- There is a still further need to reduce economic costs associated with operations and apparatus described above with conventional tools.
- So that the manner in which the above recited features of the present disclosure can be understood in detail, a more particular description of the disclosure, briefly summarized below, may be had by reference to embodiments, some of which are illustrated in the drawings. It is to be noted that the drawings illustrate only typical embodiments of this disclosure and are therefore not to be considered limiting of its scope, for the disclosure may admit to other equally effective embodiments without specific recitation. Accordingly, the following summary provides just a few aspects of the description and should not be used to limit the described embodiments to a single concept.
- In another example embodiment, an arrangement is disclosed. The arrangement may comprise a shell comprising an internal volume, the shell having a first end and a second end. The arrangement may also comprise an electrical connection end connected to the first end of the shell, the electrical connection end configured to transmit electricity and signals. The arrangement may also comprise an electronics rack positioned within the internal volume, the electronics rack configured to support electrical equipment and an end cap positioned at the second end of the shell, wherein a combination of the shell, the electrical connection and the end cap is configured to store oil within the combination.
- Another example embodiment of the disclosure provides a method. The method may comprise obtaining a shell with a first end and a second end and installing electrical equipment within the shell. The method may also comprise installing an end cap at the second end of the shell. The method may also comprise installing an electrical connection end at first end of the shell and filling the shell with oil.
- So that the manner in which the above recited features of the present disclosure can be understood in detail, a more particular description of the disclosure, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the drawings. It is to be noted, however, that the appended drawings illustrate only typical embodiments of this disclosure and are therefore not be considered limiting of its scope, for the disclosure may admit to other equally effective embodiments.
-
FIG. 1A is a cross-sectional view of one aspect of the disclosure with an internal electronics rack. -
FIG. 1B is an external view of the arrangement ofFIG. 1A . -
FIG. 2 is a method for assembling the arrangement. - To facilitate understanding, identical reference numerals have been used, where possible, to designate identical elements that are common to the figures (“FIGS”). It is contemplated that elements disclosed in one embodiment may be beneficially utilized on other embodiments without specific recitation.
- In the following, reference is made to embodiments of the disclosure. It should be understood, however, that the disclosure is not limited to specific described embodiments. Instead, any combination of the following features and elements, whether related to different embodiments or not, is contemplated to implement and practice the disclosure. Furthermore, although embodiments of the disclosure may achieve advantages over other possible solutions and/or over the prior art, whether or not a particular advantage is achieved by a given embodiment is not limiting of the disclosure. Thus, the following aspects, features, embodiments and advantages are merely illustrative and are not considered elements or limitations of the claims except where explicitly recited in a claim. Likewise, reference to “the disclosure” shall not be construed as a generalization of inventive subject matter disclosed herein and should not be considered to be an element or limitation of the claims except where explicitly recited in a claim.
- Although the terms first, second, third, etc., may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, components, region, layer or section from another region, layer or section. Terms such as “first”, “second” and other numerical terms, when used herein, do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed herein could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
- When an element or layer is referred to as being “on,” “engaged to,” “connected to,” or “coupled to” another element or layer, it may be directly on, engaged, connected, coupled to the other element or layer, or interleaving elements or layers may be present. In contrast, when an element is referred to as being “directly on,” “directly engaged to,” “directly connected to,” or “directly coupled to” another element or layer, there may be no interleaving elements or layers present. Other words used to describe the relationship between elements should be interpreted in a like fashion. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed terms.
- Some embodiments will now be described with reference to the figures. Like elements in the various figures will be referenced with like numbers for consistency. In the following description, numerous details are set forth to provide an understanding of various embodiments and/or features. It will be understood, however, by those skilled in the art, that some embodiments may be practiced without many of these details, and that numerous variations or modifications from the described embodiments are possible. As used herein, the terms “above” and “below”, “up” and “down”, “upper” and “lower”, “upwardly” and “downwardly”, and other like terms indicating relative positions above or below a given point are used in this description to more clearly describe certain embodiments.
- Referring to
FIG. 1 , anarrangement 200 in conformance with one example embodiment of the disclosure is illustrated. Thearrangement 200 is a high reliability component that allows for electrical equipment stored inside thearrangement 200 to be fed electrical energy and transmit data from within thearrangement 200. Thearrangement 200 is filled with oil, compared to nitrogen for conventional devices. More details of thearrangement 200 are discussed in relation toFIGS. 2A and 2B below. - Referring to
FIG. 1A , anarrangement 200 of one example embodiment of the disclosure. Thearrangement 200 is used as an SEM, as discussed above. Thearrangement 200 is configured with ashell 202 that defines aninternal volume 204. In the illustrated embodiment, theshell 202 is formed in a shape of a closed cylinder. At afirst end 206, a set of electrical connections is provided for theshell 202. At asecond end 208, an end cap is provided. At 210, an electronics rack is provided to support electronics held within theshell 202. Components stored on the electronics rack 210 are fed electricity from the electrical connections at thefirst end 206. The electrical connections allow for passing electrical energy to and from the interior of the shell as well as data in the form of signals generated by measuring equipment stored in the arrangement. In the interior of theshell 202, theinternal volume 204 may be a pressurized chamber. - Referring to
FIG. 1B , thearrangement 200 disclosed inFIG. 1A is illustrated. As provided, the penetrations to theshell 202 are located at thefirst end 206. In embodiments, theshell 202 may be made of carbon steel, aluminum and titanium in non-limiting embodiments. - In embodiments, the
arrangement 200 is filled with oil instead of nitrogen. This has several benefits: -
- 1—To be able to dissipate the heat and not to have the mechanical assembly of the SEM too complex with the design of the heatsinks of critical parts of the electronics
- 2—Simplify the assembly process of the SEM, since it won't need to be sealed with Nitrogen.
- 3—Decrease the thickness of the SEM in order to allow more room for additional Electronics (higher power density)
- In embodiments, several advantages are provided. In the embodiments is enclosed, there is an increasing power density which is today limited by the heat rise of the components in the SEM enclosure and the thickness of the SEM wall
-
- High cost of the mechanical assembly
- Using oil as a heat dissipation medium, that will cool the electronics down as it is no longer relying on natural convection to Nitrogen (bad heat conductivity) but to oil which is an excellent heat conductor
- Since it is no longer sealed, the wall thickness can be reduced just to hold the electronics in place but there is no mechanical need to have a thick wall to withstand the pressure
- Electronics in oil will protect the parts from moisture and degassing (which happens over time)
- In embodiments, the capability of the
arrangement 200 provides a service life of 25 years at 400 bars exposure at 85 degrees C. Conventional apparatus do not have such long life capability coupled with low construction cost. - Referring to
FIG. 2 , a method for an example embodiment of the disclosure is presented. Themethod 300 presented provides a method of cooling and maintaining electrical components in subsea applications. Themethod 300 may include obtaining a shell with a first end and a second end at 302. At 304, electrical equipment may be installed within the shell. At 306, the method may further comprise installing an end cap at the second end. At 308, the method may further comprise installing an electrical connection end at the first end, the electrical connection end configured to transmit electrical energy to the electrical equipment installed within the shell. At 310, the method may further comprise filling the shell with oil in order to cool and protect the electrical equipment within the shell. - In another example embodiment, an arrangement is disclosed. The arrangement may comprise a shell comprising an internal volume, the shell having a first end and a second end. The arrangement may also comprise an electrical connection end connected to the first end of the shell, the electrical connection end configured to transmit electricity and signals. The arrangement may also comprise an electronics rack positioned within the internal volume, the electronics rack configured to support electrical equipment and an end cap positioned at the second end of the shell, wherein a combination of the shell, the electrical connection and the end cap is configured to store oil within the combination.
- In another example embodiment, the arrangement may be configured wherein the arrangement is made of carbon steel.
- In another example embodiment, the arrangement may be configured wherein the arrangement is made of metallic materials.
- In another example embodiment, the arrangement may be configured wherein the arrangement is made of titanium.
- In another example embodiment, the arrangement may be configured wherein the electronics rack is configured to at least one of provide electricity from the electrical connection end and the send and receive signals to electronics stored on the electronics rack.
- Another example embodiment of the disclosure provides a method. The method may comprise obtaining a shell with a first end and a second end and installing electrical equipment within the shell. The method may also comprise installing an end cap at the second end of the shell. The method may also comprise installing an electrical connection end at first end of the shell and filling the shell with oil.
- In another example embodiment, the method may be performed The wherein the oil is configured to at least one of cool and protect the electrical equipment installed within the shell.
- In another example embodiment, the method may be performed wherein the electrical connection end is configured to transmit electrical energy to the electrical equipment within the shell.
- The foregoing description of the embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where applicable, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same may be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.
- While embodiments have been described herein, those skilled in the art, having benefit of this disclosure, will appreciate that other embodiments are envisioned that do not depart from the inventive scope. Accordingly, the scope of the present claims or any subsequent claims shall not be unduly limited by the description of the embodiments described herein.
Claims (12)
1. An arrangement, comprising:
a shell comprising an internal volume, the shell having a first end and a second end;
an electrical connection end connected to the first end of the shell, the electrical connection end configured to transmit electricity and signals;
an electronics rack positioned within the internal volume, the electronics rack configured to support electrical equipment; and
an end cap positioned at the second end of the shell, wherein a combination of the shell, the electrical connection and the end cap is configured to store oil within the combination.
2. The arrangement according to claim 1 , wherein the arrangement is made of carbon steel.
3. The arrangement according to claim 1 , wherein the arrangement is made of metallic materials.
4. The arrangement according to claim 1 , wherein the arrangement is made of titanium.
5. The arrangement according to claim 1 , wherein the electronics rack is configured to at least one of provide electricity from the electrical connection end and the send and receive signals to electronics stored on the electronics rack.
6. A method, comprising:
obtaining a shell with a first end and a second end;
installing electrical equipment within the shell;
installing an end cap at the second end of the shell;
installing an electrical connection end at first end of the shell; and
filling the shell with oil.
7. The method according to claim 7 , wherein the oil is configured to at least one of cool and protect the electrical equipment installed within the shell.
8. The method according to claim 7 , wherein the electrical connection end is configured to transmit electrical energy to the electrical equipment within the shell.
9. An arrangement, comprising:
a shell comprising an internal volume, the shell having a first end and a second end;
an electrical connection end connected to the first end of the shell, the electrical connection end configured to transmit electricity and signals;
an electronics rack positioned within the internal volume, the electronics rack configured to support electrical equipment; and
an end cap positioned at the second end of the shell, wherein a combination of the shell, the electrical connection and the end cap is configured to store oil within the combination, wherein the electronics rack is configured to at least one of provide electricity from the electrical connection end and the send and receive signals to electronics stored on the electronics rack.
10. The arrangement according to claim 9 , wherein the arrangement is made of carbon steel.
11. The arrangement according to claim 9 , wherein the arrangement is made of metallic materials.
12. The arrangement according to claim 9 , wherein the arrangement is made of titanium.
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US18/489,033 US20240130075A1 (en) | 2022-10-18 | 2023-10-18 | High reliability, low cost electronics in oil for subsea applications |
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US202263379930P | 2022-10-18 | 2022-10-18 | |
US18/489,033 US20240130075A1 (en) | 2022-10-18 | 2023-10-18 | High reliability, low cost electronics in oil for subsea applications |
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US20240130075A1 true US20240130075A1 (en) | 2024-04-18 |
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US18/489,033 Pending US20240130075A1 (en) | 2022-10-18 | 2023-10-18 | High reliability, low cost electronics in oil for subsea applications |
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- 2023-10-18 US US18/489,033 patent/US20240130075A1/en active Pending
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